Voyager Therapeutics is trading at $2.08, up 19.54% in after-hours trading; no clear company-specific announcement was identified to explain the rise.

  • The CEO succession plan was announced October 21, not October 23, and does not establish a cause for the move.
  • The October 23 market picture was mixed: the Nasdaq was higher, while the S&P 500 and Dow were lower, so broader-market direction does not clearly explain the gain.
  • Shares closed at $1.74 after falling 6.45% in the regular session.